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dc.contributor.authorVelde-Koerts T van der
dc.contributor.authorBoer JLM de
dc.date.accessioned2012-12-12T23:38:13Z
dc.date.available2012-12-12T23:38:13Z
dc.date.issued1993-12-31
dc.identifier502501015
dc.identifier.urihttp://hdl.handle.net/10029/262202
dc.description.abstractAbstract niet beschikbaar
dc.description.abstractThe aim of this project was to develop an ICP-MS method for the determination of rare earth elements (REE) in order to investigate the REE content of Dutch surface, ground- and drinking water. Only Sc, Y, La, Ce, Pr, Nd, Sm and Eu were investigated. When the instrumental variables were optimized for minimum oxide levels, performance characteristics were following: -the detection limit was 1 mug/l for Sc, 200 ng/l for La and 50 ng/l for the other Ree (3s; n=25) ; - the calibration curve was linear up to at leat 20 mug/l ; - the precision amounted to 1.5% RSD at elevated concentrations. The determination of La was disturbed by contamination of laboratory glassware and overlap from Ba-138 and La-139 peaks in samples with high Ba content. The determination of Sc was not possible in ground- and drinking water samples because of variable background signals and serious Si spectral interferences. Spectral interferences due to major components in groundwater were negligible (apart from the interferences mentioned). Matrix effects were reduced or absent after dilution of the samples to less than 2.5 mM Ca, 2.5 mM Mg, 0.25 mM Fe and 20 mM Na. The ICP-MS method was applied to the analysis of 60 ground- and drinking water samples from 20 locations in the Netherlands and on four surface water samples. A quarter of the samples had concentrations within the working range (50 ng/l - 20 mug/l) ; the other samples had concentrations below the detection limit.
dc.description.sponsorshipRIVM DGM/DWL
dc.format.extent54 p
dc.language.isonl
dc.relation.ispartofRIVM Rapport 502501015
dc.relation.urlhttp://www.rivm.nl/bibliotheek/rapporten/502501015.html
dc.subject14nl
dc.subjectanalysemethodenl
dc.subjectgrondwaternl
dc.subjectdrinkwaternl
dc.subjectoppervlaktewaternl
dc.subjectanalytical chemistryen
dc.subjectanalytical methodsen
dc.subjectgroundwateren
dc.subjectdrinking wateren
dc.subjectsurface wateren
dc.subjectrare earth elementsen
dc.subjecticp-msen
dc.subjectzeldzame aardenen
dc.titleAnalytisch chemische aspecten van de bepaling van zeldzame aarden in grond-, drink- en oppervlaktewater met ICP-MSnl
dc.title.alternative[Sampling of rainwater for the determination of mercury. An interim report.]en
dc.typeReport
dc.date.updated2012-12-12T23:38:14Z
html.description.abstractAbstract niet beschikbaar
html.description.abstractThe aim of this project was to develop an ICP-MS method for the determination of rare earth elements (REE) in order to investigate the REE content of Dutch surface, ground- and drinking water. Only Sc, Y, La, Ce, Pr, Nd, Sm and Eu were investigated. When the instrumental variables were optimized for minimum oxide levels, performance characteristics were following: -the detection limit was 1 mug/l for Sc, 200 ng/l for La and 50 ng/l for the other Ree (3s; n=25) ; - the calibration curve was linear up to at leat 20 mug/l ; - the precision amounted to 1.5% RSD at elevated concentrations. The determination of La was disturbed by contamination of laboratory glassware and overlap from Ba-138 and La-139 peaks in samples with high Ba content. The determination of Sc was not possible in ground- and drinking water samples because of variable background signals and serious Si spectral interferences. Spectral interferences due to major components in groundwater were negligible (apart from the interferences mentioned). Matrix effects were reduced or absent after dilution of the samples to less than 2.5 mM Ca, 2.5 mM Mg, 0.25 mM Fe and 20 mM Na. The ICP-MS method was applied to the analysis of 60 ground- and drinking water samples from 20 locations in the Netherlands and on four surface water samples. A quarter of the samples had concentrations within the working range (50 ng/l - 20 mug/l) ; the other samples had concentrations below the detection limit.


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